.foo {
  @extend %waldo;
  content: 'baz';
}

.bar {
  content: 'baz';
  @extend %waldo;
}

.qux {
  content: 'baz';
  @extend %waldo;
  content: 'where';
}

.breakpoint {
  content: 'baz';
  @extend %foo;

  .foo {
    content: 'where';

    @extend %waldo;
  }

  .bar {
    @extend %waldo;
    content: 'where';
  }
}

.foo-noextend {
  @include foo;
}
